On screen
Cast
13 credited performers
Tom Baker
The Doctor / Narrator
Lalla Ward
Romana
David Brierley
K9 /Computer (voice)
Christopher Neame
Skagra
Artwork unavailable
Denis Carey
Professor Chronotis
Daniel Hill
Chris Parsons
Victoria Burgoyne
Clare Keightley
Gerald Campion
Wilkin
Artwork unavailable
Derek Pollitt
Dr. Caldera
Shirley Dixon
The Ship (voice)
Artwork unavailable
John Hallet
Police Constable
Artwork unavailable
David Strong
Passenger
Graham Cole
Krarg